Note 5 - Earnings Per Share (Details) - Computation of Basic and Diluted Earnings Per Share (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Computation of Basic and Diluted Earnings Per Share [Abstract]
Numerator for basic and diluted earnings per share - net income (in Dollars)	$ 2,044	$ 2,128	$ 6,512	$ 6,430
Denominator for basic earnings per share - weighted average shares outstanding	3,298,057	3,253,939	3,286,438	3,243,385
Effect of dilutive securities - employee stock options	11,408	12,542	9,766	11,543
Denominator for diluted earnings per share - adjusted weighted average shares outstanding	3,309,465	3,266,481	3,296,204	3,254,928
Earnings per share - basic (in Dollars per share)	$ 0.62	$ 0.65	$ 1.98	$ 1.98
Earnings per share - diluted (in Dollars per share)	$ 0.62	$ 0.65	$ 1.98	$ 1.98